Geochemical characterization of the Equatorial Atlantic Magmatic Province and its correlation with other magmatic events related to the South Atlantic Opening

Author(s)

Antomat Avelino de Macêdo Filho

• Document type: Doctoral Thesis
• Press: São Paulo.
• Institution: Universidade de São Paulo (USP). Instituto de Geociências (IG/BT)
• Defense date: 2021-10-15

Examining board members

Maria Helena Bezerra Maia de Hollanda; Cleyton de Carvalho Carneiro; Maria Irene Bartolomeu Raposo; Sergio de Castro Valente

• Advisor: Maria Helena Bezerra Maia de Hollanda

Abstract

Tholeiitic magmatism, Magmatic plumbing systems, EM component, West Gondwana breakup, Large Igneous Provinces (Angola). These aspects combined with the possible physical link between the Rio Ceará Mirim and Transminas (PEMP) swarm and Riacho do Cordeiro and Vitória-Colatina swarms (PEMP) indicate that both provinces share similar mantle sources and magmatic processes. Consequently, it can be assumed that EQUAMP and PEMP form together a continental scale tholeiitic event related to the early opening stage of the South Atlantic Ocean, therefore designed as one major single LIP of Lower Cretaceous age that should be collectively referred as the South Atlantic Magmatic Province (SAMP). (AU)

• FAPESP's process: 17/13130-0 - An integrated geochemical and isotope study to characterize the Equatorial Atlantic Magmatic Province (EQUAMP)
• Grantee: Antomat Avelino de Macêdo Filho
• Support Opportunities: Scholarships in Brazil - Doctorate